Standard 14 12 x 20 In. Furnace In. x 1 of In. Filter Duststop MERV Pack 2

Standard grade furnace filter with a filtering medium of continuous filament spun glass. Offers maximum airflow and alleviates strain on equipment. Filters pollen, pet dander, dust/lint, and dust mites. For peak equipment protection and energy efficiency, filters should be changed monthly in periods